The “Grand Public Welfare Symphony Concert to Celebrate International Labor Day” was held at the TIDFORE intelligence workshop, Jiuhua Industrial Park, Xiangtan City on the evening of April 27, 2017. The concert, themed “Paying Tribute to Craftsmanship”, was accompanied by the China National Opera & Dance Drama Theater Symphony Orchestra. More than 4,600 provincial and municipal model worker representatives and frontline workers watched the show.